Voice signal processing method, device and terminal

A speech signal processing and speech signal technology, applied in speech analysis, speech recognition, instruments, etc., can solve problems such as noise signal, reduce user experience performance, etc., to achieve the effect of improving performance, improving user experience performance, and reducing the probability of false detection

Active Publication Date: 2020-04-21
大众问问(北京)信息科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the process of realizing the present invention, the inventor found that the prior art has the following defects: since there is noise anywhere in the natural world, the voice that anyone sends is a voice mixed with noise signals, even in an absolutely quiet environment. The original voice signal acquired by the device will also include certain noise signals
If DRC processing is directly performed on the voi

Method used

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  • Voice signal processing method, device and terminal
  • Voice signal processing method, device and terminal
  • Voice signal processing method, device and terminal

Examples

Experimental program
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Example Embodiment

[0028] Example one

[0029] figure 1 It is a flowchart of a voice signal processing method provided in the first embodiment of the present invention. This embodiment is applicable to the case of performing DRC processing on a voice signal including a target voice signal. The method may be executed by a voice signal processing device. The device can be implemented by software and / or hardware, and can generally be integrated in a terminal (typically, various types of in-vehicle equipment or smart terminal equipment and other terminals). Correspondingly, such as figure 1 As shown, the method includes the following operations:

[0030] S110. Acquire a voice signal to be processed and at least two reference signals.

[0031] The voice signal to be processed may be a voice signal that needs to be DRC processed. Exemplarily, the voice command signal input by the user (that is, the microphone signal) acquired by the vehicle-mounted terminal through the microphone device or the voice comman...

Example Embodiment

[0041] Example two

[0042] figure 2 It is a flowchart of a voice signal processing method provided in the second embodiment of the present invention. This embodiment is embodied on the basis of the above-mentioned embodiment. In this embodiment, the calculation of the to-be-processed voice signal and at least two A specific implementation manner of performing dynamic range compression DRC processing on the voice signal to be processed if it is determined that the voice signal to be processed has a target voice signal according to the cross-correlation parameter of the reference signal. Correspondingly, such as figure 2 As shown, the method of this embodiment may include:

[0043] S210: Acquire a voice signal to be processed and at least two reference signals.

[0044] Optionally, the reference signal includes a first reference signal and a second reference signal; the first reference signal is a system audio signal; the second reference signal is a signal obtained by AEC processi...

Example Embodiment

[0087] Example three

[0088] Figure 3a It is a flowchart of a voice signal processing method provided in the third embodiment of the present invention. This embodiment is specific based on the above-mentioned embodiment. In this embodiment, the signal energy according to the second reference signal is given. The intermediate determination result with the target voice signal determines whether the voice signal to be processed has a specific implementation manner of the target voice signal. Correspondingly, such as Figure 3a As shown, the method of this embodiment may include:

[0089] S310. Acquire a voice signal to be processed and at least two reference signals.

[0090] Optionally, the reference signal includes a first reference signal and a second reference signal; the cross-correlation parameter is a cross-correlation spectrum; the first reference signal is a system audio signal; the second reference signal is the waiting Processing voice signal through AEC processing signal...

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Abstract

The embodiment of the invention discloses a voice signal processing method and device, and a terminal. The method comprises the steps: obtaining a to-be-processed voice signal and at least two reference signals; calculating cross-correlation parameters of the to-be-processed voice signal and the at least two reference signals; and if it is determined that the to-be-processed voice signal has a target voice signal according to the cross-correlation parameterS, performing dynamic range compression (DRC) processing on the to-be-processed voice signal. According to the technical scheme of the embodiment of the invention, the performance of voice signal DRC processing can be improved, so that the false detection probability is reduced, and the user experience performance is improved.

Description

technical field [0001] Embodiments of the present invention relate to the technical field of voice processing, and in particular, to a voice signal processing method, device, and terminal. Background technique [0002] Speech recognition technology continues to develop and has been widely used in various industries, especially in electronic equipment. In the speech recognition process, it is usually necessary to perform DRC (Dynamic Range Control, dynamic range compression) processing on the speech signal acquired by the front end, so that the energy of the output signal can better match the wake-up model and recognition model of the back end. [0003] In the prior art, DRC processing is usually directly performed on the voice signal acquired by the front end, so that the voice signal can effectively obtain gain adjustment. [0004] In the process of realizing the present invention, the inventor found that the prior art has the following defects: since there is noise anywhe...

Claims

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Application Information

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IPC IPC(8): G10L15/26G10L21/0264G10L25/06G10L25/18G10L25/60
CPCG10L15/26G10L21/0264G10L25/06G10L25/18G10L25/60G10L2021/02082
Inventor 杨晓霞刘溪
Owner 大众问问(北京)信息科技有限公司
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